Milking-machine.



R. KENNEDY.

'MILKING MACHINE.

APPLICATION FILED JAN.12, 1910.

1,064,489. Patented June 10, 1913.

TSHEBTS-SIIBET 1.

//QM y @MM/ fa/ag.

R. KENNEDY.

MILKING MACHINE.

APPLIUATION FILED JAN.12,1910.

1,064,489. Patented June 10, 1913.

7 SHEETS-SHEET 2.

R. KENNEDY.

MILKING MACHINE.

APPLIGATION HLED Ju. 12, 1910.

7 SHEETS-'SHEET 3v Patented June 10, 1913.

R. KENNEDY.

MILKING MACHINE.

APPLICATION PILBD 11111.12, 191.0.

1,064,489. Patented June 10,1913.

7 SHEETS-SHEET 4.

R. KENNEDY.

MILKING MACHINE.

APPLICATION FILED JAN. 12, 1910.

1,664,489. Patented June 10, 1913.

ZI 5 7 SHEEI'SfSHEBT 5- g l 5 n V M f@ Z Jl0\\ k f I n '35* 9 I 45@ 0 5gif 4 l l 'y 41 g 45a 60 57- z 43a il /g' l *5J 1 4x@ L WZ F- 15 y R.KENNEDY.

MILKING MACHINE.

-A APPL10AT10N FILED .1A1r.12,101o.

Patented. June 10, 1913.

7 SHEETS-SHEET 8.

R. KENNEDY.

MILKING MACHINE.

APPLIOATION FILED JAN. 12, 1910.

. 1,064,489. Patented June 10, 1913.

I SHEETS-SHEET 7.

invirEDy sTA'rEs iuriinvr OFFICE.

:ROBERT KENNEDY, OF GLASGOW, SCOTLAND.

MILKING-MACHINE.

Toall whom z' may concern.' i

Beit known that I, llonnn'r KENNEDY, a subject of the King of GreatBritain, and residing at Glasgow, Scotland, have invented certain newanduseful Improvements in Milking-B'Iachines, of whiclrthe following isa specification.

Thisk inrention relates to milking ma` chinos 'of the kind in whichalternat-ions of pneumatic pressure usually termed pulsations areproduced in the teat cups.

.The object of the present invention is to improve the Construction andaction of the mechanism for producing the pulsations, the saidmechanismv being of the pneuniatically operated type set forth in theprior Patents Nos. 642.044. dated January 23rd,

i000, 784790,' dated March 14th, i905, and 933,466, da-ted September7th, 1909.

. Under my present invention the pulsating mechanism co1nprises:

. First: A pneumatically operated device or valve (for controlling thesuction which -actuates the motor mechanism of the pulsator) which Valveis arranged in combination with, preferably, two pulsator pistons,plungers cr valves each of which may be arranged to serre' one or moreof the teat cups.

lf desired there may be a single piston plunthereto preferably through afiltering ger or valve or more than two thereof.

Second: Means for shutting off the eX- haust connect-ion from themilkreceiver and simultaneously therewith admitting air device, in order toequalize the pressure erein with that of the atmosphere so that thepulsating apparatus can be easily removed from the milk receiver.

Third: .Means for detecting the presence of milk which may accidentallyv`gain access to the air pipes or passages connected with the teat cups.y

Fourth: Means for giving easy access to the milk passages of theapparatus for "the purpose of cleaning the saine.

In order that my invention may be clearly understood I havehereuntoappended eiplanatory drawings which show, by way `of example orillust-ration,.two constructions of the improved pulsating apparatus.

Onthe drawings :i-F igure 1 is a front elevation of one form oftheapparatus adapted for double chambered teat cups, a part of 'the milkreceiver being shown in section. Fig. 2 isa plan of Fig. 1. Fig. 3

l .Specification of Letters .'atent. Patented June 10, 1913,

Application ied January 12, 1910. Serial No. 537,677.

is an inverted plan showing the underside o f the base plate. Fig. 4 isasection on the line A-B Fig. 2. Fig. 5 is a view of the valve casingface 38 and Fig. 5a an end view of the casing withlthe cover removed.Fig. 6 1s a longitudinal section and Fig. 6** a cross section of thevalve and its casing. Fig. 7 is a view of the face 40 of t-he cylindercasing. Fig. 7a is a vertical section of the cylinder 4 on the line Y-YFig. 7 and showing the plunger 6 in the down position. Fig. 8 isavertical section of the cylinders on the line C-D, Fig. 9. Fig. 8*IL isa vertical section on the line X-X, Fig. 7 and showing the plunger -7 inthe up position. Fig. 9 is a horizontal'section on theline Z-Z, Figs. 7and 5. Fig. 10 shows an alternative arrangement of ports instead of agroove in the plungers. tail 1n sectonr Fig. 12 is a horizontal sectionon the line W-XV Figs. 7 and 5. Fig. 19 is a horizontal section on theline-V-V, Figs. 7 and 5. Fig. 14.is a section of the diaphragm` chambertaken on the line G, H, Fig. 17. Fig. 15 shows another form of theapparatus adapted -lior single chambered teat cups. Fig. 16 is anenlarged view of the same. Fig. 17 is a plan of Fig. 16. Fig. 18 is an`underside view of same. Fig. 19 is a vertical section on the line E, F,Fig. 17 Fig. 20 is a section and Fig. 21 an elevation of a singlechambered teat cup which can be used with the apparatus. Fig. 22 vis aview of the apparatus with its attachments for double chambered'teatcups.

Referringto thedrawings whereon the saine reference numerals whereverrepeated .indicate the same or similar parts, the appa ratus whenadapted to milk two animals simultaneously with double chai'nbered teatcups consists of a base plate 1 which is adapted to fit on to the mouthof the milk receiver 2 being secured in position air- "tightly'by arubber'ring. The milk receiver Fig. llshows a decal open 'endedcylinders 4, 5, (as shown at Fig. 19 and also to an enlarged scale atFigs. 7 to 10 and 12 and 13) in whiclrwork two plungers 6, 7,thesepl'ungers beingconnected together by a cross head 8, Fig. 19whichlatter is secured to a flexible diaphragm 9, Figs. 4, 14 and 19, in a.chamber 10 which latter'is open at its underside and may be iio hel/din position by piiislll. (one of which is shown in full at Fig.i 14)engaging holes 12,

13. The pluiigers are solid and of cylindrical shape the one 6 beingpro-vided with a `vertical groove 14 and'a horizontal groove` 15 (seeFig. 7) and the other .7 provided with a vertical groove 14a andhorizontal "groove 15a as shown at Fig. 8a. The vertical groove (14 cr14) of each plunger is adapted, when' the plunger is in the up position,to open communication between the passage 21, leading to the airchanjiber of the gceiver, freni-which the air is exhausted dur? 17' (seeFig. 3), branch 1S and connection '13x (see Fig. 22) leading toa vacuumpump hauster. In order to detect the teatcups, and the .interior of theinilkvreing milking by means ot the e.\'liaustport or other suitable andwell known air exresence of milk which may accidentally gain .access tothe air pipes I may use any suitable device,

but, asa simple arrangement I preferably connect the4 cock 19 for eachair pipe 2() to the passage 21 by a transparent tube 22. The cock 23 foreach milk pipe 24 is likewise connected tothe passage 25 by atransparent tube 26 (see Figs.' l and 2). As shown at l .Figs'. 1, 2 and11, thedmilk passage 25 for each'set oflteat cups communicates vwith avertical passage 2,7 open Iat each end and closed at the upper end by aremovable cover 28 held in position, so vas to close tightly each"passage, (by means ot-a screw'29 and nut 30). Rubber'rings are-let intorecesses in the underside 'of the cover'so as to close tightly againstthe upper ends 'of the pas' sages 27. These'passages are easily bored yl diaphragm 9, the air from the upper side of the diaphragm beingexhausted for each npwardmovenient, and air being supplied to the upperpart of the chamber 10, for eacli l l'downward movement, the, supply andexhaust being cont-rolled by the action of a pneumatically operatedcontrolling valve 34 which is shown clearly at Figs. 5, 6 and 6L 55Aandthe operation of' which will be subsequently explained., It will besufiicient to state here meantime that when .the valve i s.in

.oneposition air is exhausted 'from the upper Y side of the diaphragmthrough the pipe 33 and the passage 31 which latter can' be controlled by means of a screw valve 3 2), and

when .the valve' is in another position, air is admitted to the upperside of the diaphragm whereupon the suct-ionin the milk receiver and' 7pulls the same downward in .the same vmanner as describdiii the priorspecification No. 933466 of 1909".

` The flexible pipe 33-is connected, as clearly shown at Fig. 9, .to a-nipplje 35 having a passage therethrough, as shown -in dotted lines,which also passes through the tubular part 36 on" theface of thecylinder casting '40 (see also Fig. 7) and communicates lwith thepassage 37 (see also Fig. 5) through the face 38 ofthe valve casing thispassage 37 leading yto the interior of the' valve-casing 41 as sliowniiidotted lilies at Figs.. 6 and 6.` The arrangement is also shown atFig. 4

where the continuous passage 37 can be clearly seen. rl`.lie'cylindercasting is made with three chambers 43, 44, and`45, and the centralchamber 44,is in constant communication with the suction nozzle `18 bymeans of the passage way 46, groove 47, and hole 483,' see Fig. 4. Asthe hole 48"L is in constant communication with-the interior of the milkreceiver 2 'it follows that so longas a vacuum is maintained in saidreceiver it'will also be maintained in the chamber 44. The chamber`44can communicate with the cylinders-4, 5, by means of the ports 47, 48,and

the chamber 43 can communicatewith the nteriorof the cylinder 4 by meansof the ports 49, 50, while'the chamber 45- can communicate with theinterior ofthe cylinder. 5 by means of the ports 5,1, 52., The cylinder--4 has a .port 53 leading to the outer atmo'sphere and the cylinder 5has a port 54 leading to the outer atmosphere. The face of the cylindercasting is trued up and likewise the face 38 'of the valve casing istrued up .both facesitting tight against one another the chamber 43 inthc cylinder casting corresponding to a chamber 43a in the valve casingand -the chamber inthe cylinder casting corresponding to a' chamber 45in the valve casing. ,In the valve casing there. are passage waysleading to one end o f the interior thereof and there are passages .56leading to the other end of the interior thereof. -The ends of tlievalvecasing are l shown at Fig.`5, gwhere is also clearly seen 4the ends 'ofthe passages 55. The ends of the casing are enlarged slightly, as 'shownat 57 andv58, Fig. 6,and both ends are provided with screw covers 59,6,0. Within the casingis-itted a piston valve 34 having a reducedportion 61,at the center thereof, l

this valve working tightly, yet freely, inthe cylinder an'd havin-gprojections 62, 6.3, pr'ovvided with rubber or other soft cushions64at`.tlie ends thereof so ats'to prevent. noise as ,the valve oscillatesfrom end tof end of the cylinder.- 'There is a port 66 leading from theinterior of' the valve casing to the chamber 44. andv there is a port 66leading from the interior' of the chamber to the atmos- 6,5 acting on.the underside of the plungers 6 The 'whole apparatus is .pneuniat-callyop- 4are open "to the milk receiver.

'erated no springs or mechanically operated parts being employed. Whenthe air is eX- less -than the area of the diaphragm 9.4

When the cocks 19, 19, and 23, 23, are opened then the suction in themilk receiver acts nthe milk chambers of the teat cups and draws themilk from the cows in the usual manner (two cows being milked with thisapparatus simultaneously) and the milk flows direct down the milk tubes24 through the glass tubes 26 and vertical passages 27 to the milkreceiver, The suction in the milk chambers of the teat cups 70. Fig. 22,is approximately constant. The suction in the milk receiver acts through'the passages 48* and 4G to exhaust the air from the chamber 44 and, asthe plungers 6 and 7 are now v in* the down position, the groove 15 ofthe one plunger will open communication between the port 4T and 'theport 50 thereby exhausting the air from the chamber 43 while the groove15 of the plunger 7 will 'establish communication between the port 52andthe port 54 thereby admitting air from the atmosphere to the chamberconsequently the corresponding chambers 43a and 45a of the valve casingwill be, the one exhausted and the other supplied with air, the exhaustchamber v43a being in communication with the left hand end of. the boreor' the valveca-sing 41 (Fig. 12) while the air Ychamber is incommunication with the right hand end of said bore, through thepassagesfi, respectively; iollows that f' the pressure ol the air at theright hand end of the cylinder will drive the piston valve over to theleft hand side thereof thereby' bringing the port which leads to thevacuum chamber 44, in communication with thel port 37 'which leads, bythe pipe 33, to the upper side of the diaphragm t) andnas aconscquenoe,vthe air exhausted therelrom so that dthe atmosphere act-ingon the underside ofthe diaphragm 9 will raise the plurigers and? 'to thetop of their stroke whereupon the vertical grooves 14, 14, ot theseplungers will be put in communication with the air pipes leading to theteat cups so that the air will be exhausted therefrom and also in theair chambers of the cups causing the internal walls of the latter foexpand.

The upward movement of the plungers cuts oii the communication throughthe ports land 52 and establishes communicaf tion, on 'the one hand,between the ports 49 and 53 and, on the other hand, between the ports 48and 5l. is a result air is supplied from the atmosphere through the port53 to the chamber 43 and destroysthe vacuum therein while the ab` in thechamber 45 is exhausted through the port 48 so that now we have thechamber 43 supplied with-` air and the chamber 45 exhausted;consequent-ly, pneumatic pressure now acts through the passages of theleft hand end of the piston valve while air is exhausted by the passages56 'from the right hand end thereof whereupon the valve moves back againto the right (see Fig. G) and closes the vacuum port and opens the airport GG. The air now gains access, through the port 37 and pipe 33, todestroy the vacuum in the chamber 10 whereupon, thepressures on bothsides of thc-diaphragm being equalzed, the suction in the .milk receiveracts on the lower ends of the plungers G and 7 and again pulls themdown, whereupon the action previously described is repeated.

lVhen the plungers are in the up position a certain amount of air isadmitted by a valve on the teat cup connector or claw (see Fig. 22) andwhich may be the same as described in the specification ol the priorPatent No. 933,466 of 1909, with reference to Figs. 17 and 1S thereofand passes down the milk tube to the milk receiver and assists the flowof the milk.

lf so desired insteadof admit-ting air at the4 teat cup connector it maybe admitted by the pulsator plungers in the same manner as set. forth inthe prior Patent 933,466 of 1909.

In milking by pulsating suction with single chambered teat cups or whenworking with a pulsating suction in the air chambers in the teat cupconnector or teat cups or in the manner set forth in the priorspecification No. 933,466 of 1909. By this simple pneumatic arrangementthe parts are kept in constant operation so long as the milking isproceeding.

The speed ot the apparatus can be co1`1- trolled by turning the screw 32so as to regulate the passage. of air through the tube It will be seenthat when the plungers G, 7, are iu the up position their verticalgrooves 14. 14, communicate with the in tc iol" of the milk pail so thatshould the attendant make a mistake in coupling up the milk and air pipeconnections with thc teat cups the milk will flow directly into thepail.

If, through a misiconnection of the air pipes, or through defective teatcups, or otherwise, milkgains access to the air pipes its presence canbe at once ,detected by means of the glass-tubes 99 and thereupon themapreventing contamination chine be stopped and the pipes properlyconnected or the defective teat cups replaced.

-It Will be seen that all the parts can be simply made, fitted andrenewed and that there is nothing in the Way of springs or othermechanical pai'ts togetout cf order. Of course by using only one lset ofconnections and one s'et of cocks 19, 23, the others being closed, asingle animal can be milked instead of milking two simultaneously.

l`he suction nozzle 18, as shown at Fig. at, is provided with a threeiva cock 67 and 'but it also insures that the/air which rushes into themilk-receiver shall'be ltered before coming in -fcontact -with the milk,thereby If it is desired to eifect the milking .with single chamberedteat cups,' then the arrangement is simplified, as lshown at Figs. l516, 1,7, and 1S, by dispensing simply With the connections 23, 26, 25,and operating the single chambere-d teat cups with a pulsating suctiondue to the action of thn plungers 6,

7. Of course,- vmilking with single chambored teat cups can be'etl'ectedquite Well with .the Aarrangement shown at- Figs, l to 1.4: by simplyconnecting up the cocks l9,'l9, only and closing the cocks '23, 23.

Figs. 20 and 21 show a form of single chainbcred teat cup which may beemployed with the apparatus this cup being made of rubber or otherflexible material and being' provided with a i series of longitudinalgrooves S2 at itsoutside. 83 is the nipple for'connect-ing to the pipes84 leading to the connector S5 and pipes S6.

Instead of having grooves 15, 15a, in the plunger-s 6. and. 7 I may havethree holes bored .in each plunger as shown at Fig.- l() these holes.communicatingwith one another.

These holes are more easily made than the grooves. Y

lt will benoted that the piston valve can be readily taken out of thevalvecasing and replaced by 'a fresh valve when worn..

Having now fully described/ my invention what. l claim and desire to.secure by Letters Patent isz- 1. Ina milking machine both controlledand operated automatically. by suction, pul

sati'ng mechanism comprising. in combinan tion, a movable device whichis operated pneuinatically, a plurality of members connected to thedevice and moving therewith, said' members being movfd by. the device inone direction and by the suction, which colistantly acts thereon, in theother direction,

and vpneumaticallyoperated." means coii.

trolled byV said membersfon'controllingthe pulsating operation. y

2. In a milking machine bothcontrolledl and operated automatically .'bysuction, piil' sating mechanism comprising, in combina-- tion, a pair ofmembers constantly acted on by the suction, a chamber, pneumaticallyoperated .means Within the chamber, for

'moving said members against the said suc# tion, and pneuniaticallyoperated means controlled by said members for controlling the operationof the said' ineanswithin the chamber.

43.;In a .milking machine both cont-rolled and operated automatically bysuction, pulsating'mechanism comprising, in combination, a movabledevice having a pair of parallel members constantly acted on by thesuction, a chamber, a diaphragm Within the chamber and connected to saiddevice and pneumatically operated means con-' vtrolled by said movabledevice for controlling the operation ofthe diaphragm Within the chamber.v

et. In a. milking machine both controlled' and operated automatically bysuction, pul sa-ting mechanism comprising, in combination, a movabledevice'having a pair o' members constantly acted Aon by the suction, achamber, a pneumatically operated'dia' phragm wvitliin'th'e chamber foroperating the device and pneumatically operated means controlled bysaidmovable device for controllingthe admission of'air to and-its exhaustfrom thesaid chamber.

5. In a milking machine both controlled and operated automatically bysuction, pnlsai-ing mechanism comprising, in combination, a movableldevice having a' `pair of pai allel members constantly acted on by thesuction, a chamber, a diaphragm Within the. chamber for moving 'the saiddevice against the said suction, and .pneumatically operated meanscontrolled by said movable device for controlling the admission of airto and its exhaust from the said chamber.

6. In' a milking machine both controlled and operated automatically-bysuction, pulsating mechanism comprising,- in'- combinatlie suction, achamber, means Within the chamber and pneumatically operated formovingthe sa'i'd device and'members against air to,and its exhaust from .the`'said chamber.

loo

tion a movable device having a pair of paral f lel depending membersconstantly acted on by 7. In a suction milking machine pulsat,

ing mechanism comprising, in combination.,- .a movable valve device,having one end."

thereof constantly acted on'by the suction, 130

6o one end thereof acted on by suction, a casing a casing -for saiddevice having vacuum and;t

air admission ports therein, a chamber,

means within the chamber for moving said device, vacuum and air chambersin .said

casing, ports connecting the vvacuum and pneumatically operatedcontrolling valve, and ai'casing for said valve with ports ing mechanismcomprising,

Y- ports therein therein communicatin with said chambers. 8. In asuction mil ring machine pulsating mechanism comprising, in combination,a movable valve device having one end thereof constantly acted `on bythe suction, a casing for 'said device having vacuum and air admissionports therein, a chamber, means within the chamber fior moving saiddevice,a vacuum chamber in'said casing, a second chamber in said casingwhich is alternately supplied with and exhausted of air, a pneumaticallyoperated controlling valve, and a casing for said valve withdommunicating with said chambers.

9. In a suction milking machine pulsatin ycombination, a movable valvedevice having one end thereof constantly acted on by the suction, a

' casing for said device having vacuum and air admission ports therein,a chamber,

means within the chamber for moving said device, vacuum and air chambersin said.

casing, ports connecting the vacuum and air chambers with the' portionof the casing occupied by said valve-moving means, a control slide valveadapted to reciprocate, a casing within which said valve reciprocates,said valve easing having ports therein communicating with thevatmosphere and with said chambers.

10. In a milking machineboth controlled and operated automatically bysuction, pulsating mechanism comprising, in combination, two movablevalve devices each having one end thereof acted on by suction, a casingfor said devices having vacuum and -air admission ports therein, achamber,

pneumatically operated means in said chamber for` moving both saiddevices, vacuum and air chambers in said casing, ports conf4 necting thevacuum and air chambers with the portion of the casing occupied by saidvalve-moving means,'a pneumaticall oper,- ated controlling valve, and avcasing or said 'valve with ports therein communicating with saidchambers.

11. Ina milking machine both controlled and operated automatically`bysuction pulsating mechanism comprising, in combinai tion, two movablevalve deviceseach having for/ said devices having air admission 4portstherein, 'a chamber, pneumatically operated means in said chamber formoving both said devices, a centrally situated vacuum cham..

.ber in said casing, two chambers` adapted to be each alternatelysupplied with and exhausted of air, said casing being made with portscommunicating with the central `vacuum chamber and with the chambers`adapted to be alternately supplied with and exhausted of air, apneumatically operated controlling valve, and a casing for said valvewith ports the-rein communicating with said chambers.l 1 't `:12. In amilking machine both cont-rolled and operated automatically by suctionpulsating mechanism comprising, in combination, two movable valvedevices each having one end thereof acted on by suction, two cylindricalcasings one for each device, a metal connection between said cylindricalcasings, an exhaust'chamber in said connection, two chambers yadapted tobe each alternately supplied with and exhausted of air in saidcylindrical casings, a pneumatically operatedcontrolling valve, a casingfor said valve having chambers therein registering with the chambers ofthe cylindrical casings and ports from said chambers to the ends of thccontrolling valve casing, and ports in said movable devices, foralternately supplying air to and exhausting it from saidchambeis .in thecylindrical casings. A

13. In a milking machine both controlled and operated automatically' bysuction pul-l sating mechanism comprising, in combina'- tion, tw'omovable valve devices each having one end thereof acted on by suction, acasing for said devices having vacuum and air admission ports therein, achamber, pneumatically operated means in said ,chamber for moving bothsaid devices, a centrally-situated vacuum chamber in said casing, twochambers each adapted to be alternately supplied with and exhausted ofair, said casing being made with ports communicating with the centralvacuum chamber with .the air and with the chambers adapted to-bealternately supplied with and exhausted of air, areciprocatingcontrolling valve, a casing for and operated automaticallyby suction pulsating mechanism comprising, in combination, two movablevalve devices each hawing one end thereof acted on by suction, a casingfor said devices having vacuum and airadmission' ports therein, achamber, a pneumatically operated diaphragm therein, means connectingsaid diaphragm and devices, a

centrally situatedV vacuum chamber in said alternately supplied With-andexhausted of 18.? A milking machinewhich is both controlled and operatedautomatically by suc.

' air, -said casing being madeavith ports coin-2y 4tion having, incombination, a milk receiver,

exhausted of air, a4 reciprocating 4control valve with a reduced. part'at' its center,z

municating With the central vacuum' ch'ain. 'a base adapted to tit onthemilk receiver, a ber -ivith the air and Aivitli the chambers valve foreither admitting air to the milk the base, a pneumaticallyoperated valve-for a. .renfiovable casing for said valve provided controlling the-action of said pulsator, a with ports leading from said two cliambersmilk connectionao'n the base, an. air connecto 'the endsof the casing,

on said lvalve casing, air admission and eX-Q milk flow in bothconnections; teat cups each liaust ports in the valve casing, openedand,

' 'removable'ends tion onthe base,'means for indicating the closed bythe movements of said valve, and; and means for opening and closing saidconv a port in the said valve casing communicat-f nections,

in with-thediaphragm chamber, said porti,

being. controlled by the valve'and being the diaphragm chamber.

19. A milkingmachine'tvhich is both` controlled andoperated'automatically by sucadapted to supply air to and exhaust itromf tion having,` in combination, a milk receiver,

a base adapted tot on the milk. receiver,

15. ln a milking machineboth -controlled: a valve for either admittingair'to the milk and'operated automatically by suction pnlreceiveror-allowing it to be exhaustedtheres'ating mechanism comprising, in.combinafrom, a pneumatically operated pulsator on i tion, two movablevalve devices each having, the base, a pneumatically operated valve forone end 'thereof acted on by suction, a casingi controlling the actionof said pulsator, a

for said devices having vacuum and' air Yad-. milk connection on thebaseanair connecniaticallyoperated diaphragm thereimmeans connectingsaid diaphragm' and devices, a, 'the connection ZandV the interior ofthe` centrally situated :vacuum chamber in said? milk receiver, means'for establishing ,direct casii'ig, tivo chambers adapted to be eachmission ports therein, a chamber, a pneii` tion on the base, meansforestablishing comnuni'cation through the pulsator betweencommunication between the milk 'connection alternately supplied with andexhausted of: and the interior of the receiver and teat cups air, saidcasing being made ivitliport's coineach ,communicatin with bothsaid-connecmunicating with the cent-ral vacuum chamadapted to bealternately supplie'dwith and exhausted of air, a reciprocating controlvalve of cylindrical shape with .a reduce'dd tion having,4 incombination, a milk receiver,

tions and means o r opening and closing ber'lgi'vit-h the air and withthe chambers said connections Y,

eo. A making machine which is both @0ntrolledand operated automaticallyby sucpar'tf'at its center, a casing for said valvea b ase adapted totit on theAmilk receiver, a

having chambers registering Witli'tlie said tivo chambers in thecasing-` of said devices, a port in the valve casi-ng for air admission,

valve f or either. admitting air to the milk receiver or 'allowing it tobe exhausted. therea port in. said valve casing for air eXhaus-' thebase, a pneumatially operated valve for from, a-pneiimatically operatedpulsator on tion 'and a port in said casing communicating withsaiddiaphragm chamber.

controlling the action of said pulsator, a ,milk connection ony thebase,gan air connec- ,16;- A milking machine which is both-con tion on'the base, means `for establishing trolle-d and operated automaticallybysiiction having,'in combination, a milk receiver, abase adapted to.fit on the milk receiver, a valve for either admitting air to the milkreceiver or allowing Ait to be exhausted therethe base, a pneumaticallyoperated valve for controlling the action of said pulsator, 'and teatcup connections.

` 17. A milking machine which is bothcon trolled-and operatedvautomatically by suction having, iti combination, a milk receiver,

' a base'adaptedto fit on the milk receiver, a-`

valve for either admitting air to the milk receiver-or allowing it to beexhausted therefrom, an air filter in connection with the valve, alpi'ie'uinatically operated pulsator on 'the base, apneumatically.operated valve for controlling the action of. saidpulsatpi and teat cup connections.

communication lthrough the plsator -between the air connectionand the iterior of y losing said connections.

- 2 1. A milking machine which is'both. controlledandoperated:automatically by .suction having-in;combination, a milkreceiver,

e exhausted thereceiver or allowing 'it to and teat cup connections.

' 22. A milking machine which is both concommunicating. Wit-h both saidconnections from, a,pneumaticallyoperated pulsator on the milk receiver,means for establiP hing di.

. aa base adapted to Afit on the milk receiver, ai

valve for either' admitting air to the milk re" from; two peumaticallyoperated pulsators 1',

voi

'adapted to' be. alternately .supplied with, and' receiver or allowingit to be exhausted there-f. j

from, a pneumatically operated pulsator ofi'- teat cups each'communicating' with both said connections andmeans foropening and y 1for 'controlli n,, the action-of said` pullsators,

trolled` and operated automatically by suction having, in combination, amilk receiver, a basel adapted to fit on the milk receiver, a valve foreither; acllnittingaii' to the milk receiveror allowing it to beexhausted therefrom, tivo-pneuniatially-operated pulsators on' the base,a pneuinaticall;r operated Kalte for controlling the ction'of saiclpulsators,

a milk connection on the base, an air con- Anecti'on oh the base, meansfor establishing communication through the pulsatorbetween' the airconnection and the' 'interior of the milk receiver, means forestablishing direct communication between the milk connection and the`interior'of Vthe. receiver a removable cover 'for said directconnections, tent cups each communicating with both said connections andmeans for opening and closing'said connections.

23. A milking machine which is both conthe base, a Apneumaticallyoperated valve for controlling the action of said pulsato'n' a milk:connection on the base'fan air connection on the base, transparent'means for ol;- serving the flow of inilk 'in both' connections, teatcups each communicating with' bot-l1 saicl connectionslvancl means foropening and closing said connections.

In testimony whereof I a'flix my signature in presence of two Witnesses.

l ROBERT KENNEDY. Witnesses.:

HUGH D. FrrzrA'nucK, Anuman' HAMILTON.

